Frangible clamping-piece for frost-proof meters.



C. 6. DE LAVAL.

FRANGIBLE CLAMPING PIECE FOR FROST PROOF METERS.

APPLICATION FILED JULY 31 I915.

Patented J 1mg 11, 1918;

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CARL GEORGE DE LEVEL, OF ORANGE, NEW JERSEY, ASSIGNOB, T0 HENRY R. llVOISt'JJH- INGTON, NEW-YORK, N. Y., A CORPORATION OF NEW JERSEY.

FWGIBLE CLAMPING-FIECE FOR FROST-PROOF METERS To all whom it may concern:

Be it known thatI CARL GEORGE on LAVAL, a citizen of the United States, residing at Orange, county of Essex, and St'ateof New Jersey, have invented certainnew and useful Improvements in Frangible Clamping- Pieces for Frost-Proof Meters, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates particularly to water meters of thoseclasses in which the casing is made with two parts held together by a frangible connection such as to be broken and allow the casing parts to separate on freezing, thus avoiding breakage of the casing or injury to the meter parts,'this class of meters being commonly known as frost proof meters.

The especial object of the invention is to provide a simple, cheap and convenient frangible means'for securing the parts of the casing together, which w1ll break without injury to an of the parts of the casing, and which she. be applicable generally to meters in which the parts of the casing are bolted together, so that.no special construction of meter casing is required but an ordinary meter may be made frost proof by using my device.

In the accompanying drawing forming a part of this specification, the invention is illustrated as applied in a construction of the preferred form, and dertain modifications thereof, and these constructions will now be described in detail and the features forming the invention then specifically pointed out in the claims.

In the drawings -Figure 1 is a side elevation of a'disk meter'made frost proof in accordance with my .invention Fig. 2 is a detail view of a portion of Fig. 1, showing the same frost proof washer as in Fig. 1, but with the casing parts and washer secured in a different manner;

Figs, 3 and 4 are detail views similar to.

Fig. 1, showing modified forms of construction.

11. In the construction of meters without the frost proof feature, these bolts 11 are In the drawings, the meter shown is a Specification of Letters Patent. Patented J 1111mm;- Jili, 191$;

Application filed July 31, 1915. Serial NO. 42,996.

secured by nuts or passed through one,lug and screwed into the other. For a frost proof meter in accordance with my invention, a frangible clamping piece is placed between the bolt head and one of the In 10, so that by the breaking of this frangib e member, the two parts of the casing will be allowed to separate on the bolt, and without breaking or detaching the latter.

In'the preferred form shown in Figs. 1 and 2, the frangible clamping piece is a washer 12 which consists of a cross bar or disk having an opening through which the bolt is passed, and two arms 1 extending arallel with and on opposite sides of the olt and having inwardly extending flanges,

2, which rest againstthe lug 10. As shown in Fig. 1, the washer 12 is on the lower'side of the lugs, and the bolt is simply passed through the washer and lugs and drawn up tight to secure the parts together. by nut 3, while in Fig. 2 the washer 12 is applied above the lugs 10, and bolt 11 passes through the upper lug and is screwed into the lower lug. The flanges 2 are so constructed as to break under a certain pressure and permit the lugs and casing parts to separate on bolts 11. i

In Fig. 3 a modified form of clamping piece 12 is shown, in which the arms 1 are of sufficient length to allow the disk or cross bar to lie on one side of the two lugs,

and the flanges 2 to overlap the opposlte are united into a cross bar or disk, and the.

arms and flanges are inclined to the bolt 11,

thus-forming a hollow frangible washer 13 between the bolt head and lug 10, the action being secured by the breaking of the washer I being the same as by the breakin of the flanges or other parts of the angible clamping ieces shown in Figs. 1 to 3.=

It will be understood that the invention I is not limited to the exact form or construction of any of the frangible clam ing pieces shown, but that these may be mo 'fied within the invention defined by the claims. While the invention is especially intended for water meters, it will beunderstood that it may be applied also to other articles havthat the poets Shelli excessive pressure 2.10m Wise.

Woet I eieim is: 10 In a, frost pmoi Water meter or the like e easing timing two parts and bolts passing tilfml h prejeetiiig pozetioiie of time easing parts for holding the parts together, and id damping oieees on said i'ooits, said damping pieces having frangible with inwardly extending portions on opposite sides of the bolt end forming a imngibie ,eomieetion between the boit and erojeetizmg portions of the easing pelts whereby easing petite etioweei'to separate on the bolts on Toteeimiig oi. the clamping PILQUBSu A frangible rigid clamping oieee for :Z'Tost pioof meters and Fee like, having a, cross Tom with e, bolt opening through it and on the opposite sides of the cross idiot iHWZLIFQHT extending portions, seid etose oer and inwardly extemiing portions oi" the s being attempted to form ireiigibie between the bold and eesing parts em to allow the easing; to sepemte on of the elem pieeen 4 In testimony I have hereunto set my in the presence of two subset Witnesse CARL DE iLaAVALo Witnesses: 1

J, Fm'ioiiMAN, H To Heeemm 

